iliac region represents one of the parts of the back wall of the abdomen and has the shape of cavity.Its upper boundary is the ilium (PC), in particular its crest, the anterior border - the beginning of the bones and ligaments, internal - connection to the sacrum, the lower boundary line is anonymous.PC thus acts as a skeleton art, which are attached to the back wall of the abdomen muscles.Together, muscles and bones form a tight case.
Thus, to the sacrum with both sides attached great iliac bones, which have rounded tops so well palpated on the human body.
ilium is the largest of all of the bones that form the pelvic Department of the human skeleton.Its lower part somewhat thickened and is called the body of the PC, which forms the upper part of the acetabulum.With the body of the ilium and sacrum are connected to the femur.At puberty PC merges with the pubic and ischial bones in the area of the acetabulum, thus forming a pelvic bone.
On the inner side of the body line extends in an arc shape, and is located above the widest part of the bone, called PC wing, the lower portion of which is tapered, and the upper - widened.Thickened edge of the wing, attached to his stomach muscles, traces of which are printed on the bone in the form of three lines (lips): the outer, inner and intermediate.It should be noted that the upper parts of the wings are called
Note that the front edge of the iliac bone coalesces with the pubic and the rear edge of the borders with the sciatic notch.The outer part of the wing is a place of fastening the gluteal muscles, and on the inside of the wing, called the iliac fossa, is ear-shaped articular surface, which is the junction with the surface of the sacrum.Above it is the iliac tuberosity, serving for fastening cords.
iliac fossa is the site of attachment of the iliac muscle.It is adjacent to the lumbar muscle and originates from the upper part of the fossa, the inner lips and the anterior sacral crest and lumbar ligaments.Together with a large iliac psoas muscle involved in the formation of muscle of the abdominal wall (the back).It also functions include hip flexion.
Thus, the upper part of the PC rounded front and rear form of two projections and the outer part somewhat elevated.In general, the relief of the bone depends on the muscle attachment points which are formed by various lines, ridges, pits and spine.
Thus, iliac bone is one of the three components that make up a single pelvic bone.In humans, it is connected to the sacral bone (fusion of five vertebrae) in the area of the acetabulum grows together with the other two components of the pelvis.In this area, the muscles are attached, in particular, iliopsoas, which due to its contraction causes the limb to move forward, that is, control over their movement and stabilizes the pelvis flexes the hip and lumbar spine.
Summing up, it should again be noted that the ilium , the function of which is to mount muscles, uchuvstvuet in the formation and control the movements of the lower limbs.Connected with movable joints and muscles, the PC forms also protect the soft parts of the body, providing at the same time it smooth motion.Moreover, as part of the human skeleton, hip bone serves as a skeleton to which are attached other body parts, namely the lower limbs.
